Show HN: Multiplayer – open-source local debugging agent, unsampled runtime data

Category: devtools

Tags: debugging, coding-agent, observability

Score: 7.3/10 (Innovation: 7, Technical: 8, Documentation: 7, Utility: 7)

Multiplayer is an open-source local debugging agent that connects coding agents to production runtime data, capturing unsampled full-stack session information to automatically fix bugs. It stands out by providing complete runtime context (including request/response content) that traditional APMs miss, and orchestrates the entire fix workflow from error detection to PR creation.

Target audience: backend devs, devops, fullstack devs

Repository: https://github.com/multiplayer-app/multiplayer · TypeScript · MIT · 6 stars

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